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18674328696 = 2336183313491
BaseRepresentation
bin10001011001000100…
…111010010001111000
31210012110001012002120
4101121010322101320
5301221112004241
612325011401240
71230524113662
oct213104722170
953173035076
1018674328696
117a13198601
123751bb3220
1319b7b5204a
14c92201532
157446a9666
hex45913a478

18674328696 has 128 divisors (see below), whose sum is σ = 48274410240. Its totient is φ = 6017356800.

The previous prime is 18674328689. The next prime is 18674328697. The reversal of 18674328696 is 69682347681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18674328697) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38033011 + ... + 38033501.

It is an arithmetic number, because the mean of its divisors is an integer number (377143830).

Almost surely, 218674328696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18674328696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24137205120).

18674328696 is an abundant number, since it is smaller than the sum of its proper divisors (29600081544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18674328696 is a wasteful number, since it uses less digits than its factorization.

18674328696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957 (or 953 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 60.

The spelling of 18674328696 in words is "eighteen billion, six hundred seventy-four million, three hundred twenty-eight thousand, six hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 24 61 83 122 166 183 244 249 313 332 366 488 491 498 626 664 732 939 982 996 1252 1464 1473 1878 1964 1992 2504 2946 3756 3928 5063 5892 7512 10126 11784 15189 19093 20252 25979 29951 30378 38186 40504 40753 51958 57279 59902 60756 76372 77937 81506 89853 103916 114558 119804 121512 122259 152744 153683 155874 163012 179706 207832 229116 239608 244518 307366 311748 326024 359412 458232 461049 489036 614732 623496 718824 922098 978072 1229464 1584719 1844196 2485933 3169438 3688392 4754157 4971866 6338876 7457799 9374663 9508314 9943732 12677752 12755689 14915598 18749326 19016628 19887464 25511378 28123989 29831196 37498652 38033256 38267067 51022756 56247978 59662392 74997304 76534134 102045512 112495956 153068268 224991912 306136536 778097029 1556194058 2334291087 3112388116 4668582174 6224776232 9337164348 18674328696